scholarly journals Comparative Vulnerability of Three Esocids to Largemouth Bass (Micropterus salmoides) predation

1989 ◽  
Vol 46 (12) ◽  
pp. 2095-2103 ◽  
Author(s):  
David H. Wahl ◽  
Roy A. Stein
Keyword(s):  
Habitat Selection ◽  
Largemouth Bass ◽  
Micropterus Salmoides ◽  
Northern Pike ◽  
Parent Species ◽  
Esox Masquinongy ◽  
Predation Rates

We compared vulnerability among tiger muskellunge (Esox masquinongy × E. lucius) (TM), northern pike (E. lucius) (NP), and muskellunge (E. masquinongy) (M) to predation by largemouth bass (Micropterus salmoides). Equal numbers (about 25/ha) and sizes (either 145, 180, or 205 mm) of each esocid taxa were stocked into three reservoirs (40–89 ha) during 3 yr (five stockings total). Tiger muskellunge were significantly more susceptible to predation ([Formula: see text], range 1–53% mortality) than muskellunge ([Formula: see text], range 2–26%); northern pike were intermediate in susceptibility ([Formula: see text], range 2–35%). Esocid size influenced predation rates for all taxa; losses to predation by largemouth bass decreased from an average of 31% at 145 mm to 2% at 205 mm. Pond experiments (N = 7) provided results similar to reservoirs: TM>NP>M. In laboratory pools with simulated vegetation (N = 106 experiments), susceptibility to predation among esocids did not differ. Dispersal rates by esocids were similar in reservoirs and all taxa preferred vegetated habitats. However, differential habitat selection may partially explain why tiger muskellunge are more vulnerable to largemouth bass predation, as they spent more time in open than vegetated habitats in both pond and pool experiments than either of the parent species. For all taxa, stocking lengths [Formula: see text] in fall will increase survival by reducing predatory losses.

Effect of habitat selection and behavior on vulnerability to predation of introduced fish

1995 ◽  
Vol 52 (11) ◽  
pp. 2312-2319 ◽  
Author(s):  
David H. Wahl
Keyword(s):  
Habitat Selection ◽  
Largemouth Bass ◽  
Micropterus Salmoides ◽  
Introduced Fish ◽  
Population Demographics ◽  
Esox Masquinongy ◽  
Large Size ◽  
Size Groups ◽  
Lakes And Reservoirs ◽  
And Behavior

Losses from resident predators can be an important source of mortality for introduced fish, but may vary among species. I compared vulnerability between muskellunge (Esox masquinongy) and walleye (Stizostedion vitreum) to predation by largemouth bass (Micropterus salmoides). In pool experiments (N = 51) with simulated vegetation, muskellunge were more susceptible to predation than walleye. Habitat selection explained some of these differences as walleye spent more time in the simulated vegetation and associated with the substrate than muskellunge. Expectations from pool experiments were confirmed in reservoirs stocked with two size groups of walleye (N = 8 introductions) and esocids (N = 20). Walleye were less susceptible to largemouth bass predation for both small (mean 14% of stocked fish) and large (mean 0%) size groups than were small (mean 36%) and large (mean 21%) esocids of three taxa. For muskellunge only, walleye were less vulnerable to predation for large size groups, but not for small ones. Predation from largemouth bass should be a more important source of poststocking mortality for esocids than for walleye in lakes and reservoirs. Largemouth bass population demographics, specific to each system and year, should be considered more carefully in determining where esocids should be introduced than for percids.

Role of satiation in the functional response of a piscivore, largemouth bass (Micropterus salmoides)

2000 ◽  
Vol 57 (3) ◽  
pp. 548-556 ◽  
Author(s):  
Timothy E Essington ◽  
James R Hodgson ◽  
James F Kitchell
Keyword(s):  
Functional Response ◽  
Largemouth Bass ◽  
Consumption Rate ◽  
Micropterus Salmoides ◽  
Sustainable Consumption ◽  
Stomach Fullness ◽  
Daily Consumption ◽  
Prey Behavior ◽  
Natural Settings ◽  
Predation Rates

We evaluated whether satiation regulates the predation rates of a piscivore, largemouth bass (Micropterus salmoides), in natural settings. A functional response model indicated that predation rates can be reduced by satiation when mean prey density is high or when prey encounters are highly patchy. We then used bioenergetics modeling to estimate the predation rates of individual bass in four lakes during a 16-year period and used stomach content mass in diet samples to evaluate the variability in daily predation rates. Predation rates, expressed as the proportion (p) of the maximum daily consumption rate, were low (mode = 0.3, mean = 0.4). Stomach fullness (s), expressed as the proportion of the stomach fullness associated with the maximum sustainable consumption rate, was highly variable, and 13% of all bass diets had s > 1, indicating that bass could opportunistically forage at rates exceeding their maximum sustainable rate. The low predation rates and the ability to consume prey at rates exceeding the maximum sustainable rate make it unlikely that satiation was an important constraint on bass predation rates. Thus, satiation effects widely represented in modeling studies may be a rare component in piscivore-prey interactions, while prey behavior may be a more important component governing predation rates.

Trophic ecology of largemouth bass and northern pike in allopatric and sympatric assemblages in northern boreal lakes

2000 ◽  
Vol 78 (10) ◽  
pp. 1759-1766 ◽  
Author(s):  
Craig A Soupir ◽  
Michael L Brown ◽  
Larry W Kallemeyn
Keyword(s):  
Largemouth Bass ◽  
Aquatic Insects ◽  
Species Interactions ◽  
Yellow Perch ◽  
Trophic Ecology ◽  
Micropterus Salmoides ◽  
Northern Pike ◽  
Boreal Lakes ◽  
Limited Information ◽  
Top Predators

Largemouth bass (Micropterus salmoides) and northern pike (Esox lucius) are top predators in the food chain in most aquatic environments that they occupy; however, limited information exists on species interactions in the northern reaches of largemouth bass distribution. We investigated the seasonal food habits of allopatric and sympatric assemblages of largemouth bass and northern pike in six interior lakes within Voyageurs National Park, Minnesota. Percentages of empty stomachs were variable for largemouth bass (38-54%) and northern pike (34.7-66.7%). Fishes (mainly yellow perch, Perca flavescens) comprised greater than 60% (mean percent mass, MPM) of the northern pike diet during all seasons in both allopatric and sympatric assemblages. Aquatic insects (primarily Odonata and Hemiptera) were important in the diets of largemouth bass in all communities (0.0-79.7 MPM). Although largemouth bass were observed in the diet of northern pike, largemouth bass apparently did not prey on northern pike. Seasonal differences were observed in the proportion of aquatic insects (P = 0.010) and fishes (P = 0.023) in the diets of northern pike and largemouth bass. Based on three food categories, jackknifed classifications correctly classified 77 and 92% of northern pike and largemouth bass values, respectively. Percent resource overlap values were biologically significant (greater than 60%) during at least one season in each sympatric assemblage, suggesting some diet overlap.

Comparative thermal biology and depth distribution of largemouth bass (Micropterus salmoides) and northern pike (Esox lucius) in an urban harbour of the Laurentian Great Lakes

2016 ◽  
Vol 94 (11) ◽  
pp. 767-776 ◽  
Author(s):  
Tyler B. Peat ◽  
Lee F.G. Gutowsky ◽  
Susan E. Doka ◽  
Jonathan D. Midwood ◽  
Nicholas W.R. Lapointe ◽  
...  
Keyword(s):  
Body Size ◽  
Great Lakes ◽  
Largemouth Bass ◽  
Spatial Ecology ◽  
Habitat Management ◽  
Micropterus Salmoides ◽  
Northern Pike ◽  
Esox Lucius ◽  
Laurentian Great Lakes ◽  
Pike Esox Lucius

Understanding how individuals are distributed in space and time, as well as how they interact with dynamic environmental conditions, represent fundamental knowledge gaps for many fish species. Using acoustic telemetry tags, we monitored the temperatures and depths used by northern pike (Esox lucius L., 1758) and largemouth bass (Micropterus salmoides (Lacepède, 1802)) in Toronto Harbour (Lake Ontario). Northern pike and largemouth bass had similar thermal experiences throughout the year, except during summer, when northern pike were observed in cooler waters than largemouth bass. Both species used different depths throughout the year, with northern pike occupying deeper depths. Statistical modelling indicated that depth usage was influenced by all variables (season, species, and body size) and interactions between them, whereas thermal preferences were influenced by the main effects and interactions between species:season and species : body size. Both species were observed at temperatures warmer than those in the vicinity of nearby telemetry stations, but as station temperatures exceeded 20 °C, northern pike moved into cooler water, indicating active thermoregulation. These data will be useful for refining our understanding of the spatial ecology of fish and for informing fisheries and habitat management in this and other urban harbours of the Laurentian Great Lakes.

Pathogeny of disease characterized by swollen liver and spleen in largemouth bass (Micropterus salmoides)

2013 ◽  
Vol 18 (3) ◽  
pp. 654-659 ◽  
Author(s):  
Dongmei MA ◽  
Guocheng DEND ◽  
Junjie BAI ◽  
Shengjie LI ◽  
Xiaoyan JIANG ◽  
...  
Keyword(s):  
Largemouth Bass ◽  
Micropterus Salmoides

scholarly journals Growth performance, feed cost and environmental impact of largemouth bass Micropterus salmoides fed low fish meal diets

2021 ◽  
Vol 20 ◽  
pp. 100757
Author(s):  
Li Wang ◽  
Zhenghe Cui ◽  
Xing Ren ◽  
Peng Li ◽  
Yan Wang
Keyword(s):  
Environmental Impact ◽  
Growth Performance ◽  
Largemouth Bass ◽  
Fish Meal ◽  
Micropterus Salmoides ◽  
Feed Cost
Sign in / Sign up

Export Citation Format

Share Document